Table 3.

Comparison of heart rate, respiratory rate and PAP (x̅±s)

Index	Control group (n=53)	Research group (n=53)	t	P
Heart rate (times/min)
Before treatment	123.61±4.52	122.74±4.57	0.985	0.327
After treatment	103.21±4.34***	92.67±4.17***	12.749	0.001
Respiratory rate (times/min)
Before treatment	33.85±3.87	33.76±3.79	0.121	0.904
After treatment	24.33±3.41***	19.87±2.87***	7.285	0.001
PAP (mmHg)
Before treatment	51.63±5.24	51.05±4.97	0.585	0.560
After treatment	46.97±3.61***	43.52±3.09***	5.286	0.001

Note: Compared in the same group before and after treatment;

^***P<0.001.

PAP: pulmonary arterial pressure.